nbc news learned exclusive details about an fbi informant planted inside of al qaeda. according to numerous sources, the fbi had a mole who actually met osama bin laden eight years before the september 11th attacks. and this mole knew bin laden planned to finance terror plots, but the bureau opted not to disclose that information to the 9/11 commission. the informant acted as a, quote, driver and confidant for the man who planned the 1993 terror attack on the world trade center. bin laden apparently told the mole about a planned attack on a masonic lodge in los angeles, that information in the end helping the fbi to prevent the attack from happening. >>> the nutritional panels on all those foods that we buy are about to get a bit of a makeover. today, michelle obama and the head of the fda will announce proposed updates as part of the first lady's push to help americans make healthier choices. nbc's tracie potts is in washington. and tracie, as we look at some of these possible changes, how might they make things easier, some will be asking. >> reporter: well, richard,